Mountain resort image
– Lat/Long: 48.71° N 121.99° W

South Twin Sister
Weather Forecast, United States

Issued: 4 am Sat 23 May Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Moderate rain (total 12mm), heaviest on Mon night. Very mild (max 17°C on Sat afternoon, min 7°C on Mon night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 3mm), mostly falling on Tue morning. Warm (max 20°C on Thu afternoon, min 7°C on Tue morning). Wind will be generally light.

Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
rain showers
part cloud
part cloud
part cloud
rain showers
light rain
mod rain
rain showers
rain showers
light rain
rain showers
rain showers
part cloud
clear
clear
clear
clear
some clouds
rain shwrs
some clouds
some clouds
some clouds
rain shwrs
light rain
mod. rain
rain shwrs
rain shwrs
light rain
rain shwrs
rain shwrs
some clouds
clear
clear
clear
clear
km/h
5
WSW
10
WSW
5
SSW
5
WSW
5
SW
10
SSE
15
S
15
S
0
S
5
WNW
5
WNW
0
NNE
5
WNW
5
W
0
E
5
W
5
W
5
S
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
0.1
0.1
0.5
6
6
1.2
1.3
0.3
0.1
max °C
15
17
12
13
17
15
12
10
8
8
10
10
13
17
15
18
20
17
min °C
14
17
8
10
16
12
12
9
7
7
10
9
10
15
11
14
20
10
14
17
8
10
16
10
10
7
6
6
10
9
10
15
11
14
20
10
2750
2900
2600
2550
2700
2700
2100
1900
1600
1600
1900
2300
3350
3550
3650
3700
3700
3500
Cloud base (m)
2450
1950
9000
2950
3000
2100
650
850
600
700
1600
900
1750
9300
9500
Sea lvl1000m2000m3000m4000m5000m
4532430-1-3-3-2136779789658752112348991291517101217141210881010121613162014
Sunrise
5:16
5:16
5:15
5:13
5:13
5:11
Sunset
8:52
8:52
8:53
8:54
8:57
8:58

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Moderate rain (total 12mm), heaviest on Mon night. Very mild (max 17°C on Sat afternoon, min 7°C on Mon night). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Tue morning. Warm (max 20°C on Thu afternoon, min 7°C on Tue morning). Wind will be generally light.

This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.

Live conditions reported by 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
22 km WSW
94m alt.
41 minutes ago
12° C
Dry
0
Calm
(0 kph at 11).
5
25 km WSW
198m alt.
1 hour ago
-
0
Calm
(0 kph at 0).
0
26 km NW
125m alt.
2 hours ago
13° C
Dry
Wind obs. (6 kph from 166 degs) was rejected.
28 km NW
152m alt.
2 hours ago
13° C
Dry
5
Calm
(5 kph at 146).
13
30 km WSW
130m alt.
42 minutes ago
13° C
Dry
Wind obs. (8 kph from 121 degs) was rejected.
35 km WNW
19m alt.
50 minutes ago
14° C
Dry
0
Calm
(0 kph at 231).
2
35 km WSW
100m alt.
1 hour ago
12° C
Dry
5
Calm
(5 kph at 155).
14
41 km W
54m alt.
2 hours ago
11° C
Dry
8
Light winds from the S
(8 kph at 182).
19
41 km SSW
219m alt.
1 hour ago
10° C
clear
Mist -.
15
Light winds from the SW
(15 kph at 230).
8 km
Low: overcast
Bellingham Airport
41 km W
219m alt.
2 hours ago
11° C
cloudy
Dry and cloudy.
22
Moderate winds from the S.(Wind varies from 005 to 010 degs)
(22 kph at 180).
16 km
Low: broken
Mid: broken
High: overcast

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.